(List
  (Com {[LIT_OTHER ":"]} {[LIT_CHARS mam]} {[LIT_CHARS to]} {[LIT_CHARS sh]} {[LIT_CHARS script]} {[LIT_CHARS filter]})
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('COMMAND', {[LIT_CHARS mamsh]})])
  (Case to_match={[ComSub (Subshell (List (Com {[LIT_CHARS getopts]} {[SQ <LIT_CHARS "[-][123:xyz]">]} {[LIT_CHARS opt]} {[LIT_CHARS --xyz]}) (Com {[LIT_CHARS echo]} {[LIT_CHARS 0] [VarSub opt]}) ) )]}, pat_word_list=[[{[LIT_CHARS 0123]}], [{[LIT_OTHER "*"]}]]
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ARGV0', {[DQ [LIT_CHARS "-a "][VarSub COMMAND]]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('USAGE', {[SQ <LIT_CHARS "\n"> <LIT_CHARS "[-?\n"> <LIT_CHARS "@(#)$Id: mamsh (AT&T Labs Research) 1994-01-01 $\n"> <LIT_CHARS "]\n">] [VarSub USAGE_LICENSE] [SQ <LIT_CHARS "\n"> <LIT_CHARS "[+NAME?mamsh - make abstract machine to shell script conversion filter]\n"> <LIT_CHARS "[+DESCRIPTION?\\bmamsh\\b converts \\aMAM\\a (Make Abstract Machine)\n"> <LIT_CHARS "\tinstructions on the standard input to a \\bsh\\b(1) script\n"> <LIT_CHARS "\tthat updates all targets on the standard output. The script\n"> <LIT_CHARS "\tsummarily builds each target; use \\bmamake\\b(1), \\bnmake\\b(1)\n"> <LIT_CHARS "\tor \\bgmake\\b(1) for target out-of-date testing.]\n"> <LIT_CHARS "[+SEE ALSO?\\bmamake\\b(1), \\bnmake\\b(1)]\n">]})])
    )
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('ARGV0', {[DQ ]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('USAGE', {[DQ ]})])
    )
  )
  (FunctionDef usage []
    (List
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('OPTIND', {[LIT_CHARS 0]})])
      (Com {[LIT_CHARS getopts]} {[VarSub ARGV0]} {[DQ [VarSub USAGE]]} {[LIT_CHARS OPT]} {[SQ <LIT_CHARS "-?">]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 2]})
    )
  )
  (While
    (Com {[LIT_CHARS getopts]} {[VarSub ARGV0]} {[DQ [VarSub USAGE]]} {[LIT_CHARS OPT]})
    (Case to_match={[VarSub OPT]}, pat_word_list=[[{[LIT_OTHER "*"]}]]
      (Com {[LIT_CHARS usage]})
    )
  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS ": : generated from makefile abstraction : :"]]})
  (Com {[LIT_CHARS echo]} {[SQ <LIT_CHARS "eval ${1+\"$@\"}">]})
  (Com {[LIT_CHARS sed]} {[LIT_CHARS -n]} {[LIT_CHARS -e]} {[SQ <LIT_CHARS "s/^[0-9][0-9 \t]*//">]} {[LIT_CHARS -e]} {[SQ <LIT_CHARS "s/^setv \\([^ ]*\\) \\(.*\\)/\\1=${\\1-\\2}/p">]} {[LIT_CHARS -e]} {[SQ <LIT_CHARS "s/^exec [^ ]* //p">]} {[VarSub 1 test_op=VS_TEST_PLUS {[DQ [VarSub @]]}]})
)